10 Expression of results
Report the sediment content of the sample, as "sediment by extraction", as a percentage by mass, rounded to the nearest 0.01 % (m/m).
Report that "the sample mixing procedure was performed in accordance with the procedures specified in ISO 3170 or ISO 3171".
Report the temperature of the sample before and after mixing.
11 Precision
11.1 General
The precision of the method, as obtained by statistical examination of interlaboratory test results of a matrix of samples with sediment contents in the range of 0.01 % (m/m) to 0.40 % (m/m), is given in 11.2 and 11.3.
11.2 Repeatability
The difference between two test results obtained by the same operator with the same apparatus under constant operating conditions on identical test material would, in the long run, in the normal and correct operation of the test method, exceed the value below only in one case in 20.
r = 0.017 + 0.255
where
is the average result, as a percentage by mass, of the values being compared.11.3 Reproducibility
The difference between two single and independent test results obtained by different operators working in different laboratories on identical test material would, in the long run, in the normal and correct operation of the test method, exceed the value below only in one case in 20.
R = 0.033 + 0.255
where
is the average result, as a percentage by mass, of the values being compared.12 Test report
The test report shall contain at least the following information:
a) a reference to this International Standard;
b) all details necessary for complete identification of the product tested;
c) the results of the test (see clause 10);
d) any deviation, by agreement or otherwise, from the procedure specified;
e) the date of the test.